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Multi Poles Ring

multi pole radial ring magnets

AOMAG now offers high efficiency multipole magnetic rings. These Neodymium (NdFeB) rings are revolutionizing the permanent magnet space for synchronous motors, stepping motors and DC brushless motors widely used in automotive, computers, electronics, communications, office, school equipment and common household products. Until recently, full magnetic rings (FMR) were made of separate magnets joined together to create the desired ring shape. Now new technology enables the creation of super strong, one piece, multi-pole radial magnetic rings.
 

The advantages are significant:

Multi-pole Magnet

• Motor assembly is made much easier; installation of one or more rings versus gluing arcs into place.
• Radial sintering assures no weak spots.
• Magnets are multi-poles thus the ring does not compromise the magnetic properties
• The radial orientation results in a super strong magnet by virtue of superior metallurgy developed specifically to BE radially oriented.

Technology:

Hot pressing is a new method of producing sintered NdFeB magnets. This process consists of combining base powders, hot pressing the resulting material, and then baking or sintering the resulting ring to achieve a radially magnetized product. This new technology improves the magnetic flux which in turn provides better efficiency and performance.

multi pole radial ring magnets D plot of multipole ring magnets 8 Pole Multi-Pole Magnet

Radial Dual-Pole Cylindrical Magnet

High-Grade Radial Multi-Pole Ring

multi pole radial ring magnets Radial Multi-Pole Ring Diagram

Available Dimension:

O.D I.D Thickness(T) Height(H)
<70mm >15mm 2<T<5mm 25-50mm

Below are the mould we have in stock. If you choose one of them, you will not pay for the mould fee. but you should have to pay for the Magnetic fixture fee. Available mould for multi poles radial magnets

You can use the mould as above and the ones with uni pole radial ring mgnets, meanwhile AOMAG have extral mould & magnetic fixture for Ndfeb Sintered multi poles ring magnets with diametrically magnetized as below:

D6*d3*20mm 4 poles
D14.5*d6.5*15mm 4 poles
D16*d12*12mm 4 poles

D16*d12*3mm 8 poles
D19*d14.97*20mm 8 poles
D19*d15.7*28mm 8 poles

D19*d5*20mm 4 poles
D20*d13*10mm 8 poles Skew 45degree
D21*d15*15mm 8 poles Skew 45degree
D21*d14*25mm
D26*d14*20mm 8 poles
D26*d18.5
D29*d24*25mm 8 poles

D29.2*d21.2*23mm
D29.2*d21.2*26mm

D29.2*d21.2*30.5mm
D29.2*d21.2*33mm

D32*d22*35mm
D35*d25*20mm 12 poles Skew 45degree
D35*d25*20mm 12 poles
D35*d25*20mm 20 poles
D35*d25*20mm 10 poles Skew 45degree
D35*d26*23.5mm

D35*d27*21.5mm
D39*d29*27.5mm

D39*d30*25.5mm 8poles
D40*d29*34mm

D42*d34*21mm
D16*d12*12mm 4 poles

D14.5*d6.5*15mm 4 poles
D16*d12*12mm 4 poles


*Special sizes may be produced depending on the grade, height-to-diameter ratio, and wall thickness.

 

Applications:

• Actuators
• Magnetic bearings
• Magnetic clutch
• Peripheral motors
• Spindle motors
• Steering control motors
• Stepper motors
• Other new products

Other Advantages:

• Geometric precision
• Variety of magnetic configurations
• Homogeneous distribution of magnetic field
• Design and assembly simplification
• Precision of motor performances
• Cost efficiency
• Huge marketing potential

radial sintered magnets

The advantages of radially oriented ring magnet

  1. The assembling process of motor assembly will be much easier than gluing arc segments magnets on a ring, also the assembling cost.
  2. The assembling accuracy of radially oriented ring magnet will be much higher than traditional multi-arc assemblies, then improve the dynamic balance of the motor.
  3. Improve the utilization rate of raw material.
  4. Modify the distribution of surface magnetic field, then motor powder will increase more than 15%.

radial sintered magnets

The magnetization patterns of radially oriented ring magnet

radial sintered magnets

Applications of radially oriented ring magnet

radial sintered magnets

 

 

 

 

Company: Fuzhou AOMAG Magnetics Co.,Ltd.
Add: Jinshan Industrial Zone, Cangshan, Fuzhou, P.R,China
Tel: 86-0591-86397993    Fax: 86-0591-86399173
Mail:     Skype: Danielle.omagnet
AOMAG Magnetics is a professional manufacturer and exporter of permanent magnet (NdFeB, Alnico, Smco & Ferrite) and Magnetic Assemblies in China since 1996. AOMAG Magnetics, the leading magnet brand in China. Our annual production capacity is 8000 tons. We own a complete production chain and perfect quality assurance system. We are an IATF 16949:2016, ISO 14001:2015 & ISO 45001:2018 certified company. 
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